1) What is an ecosystem... a) All living beings and the physical environment b) The physical environment c) The set of living beings 2) The set of all the populations of living beings in an ecosystem is called the... a) Species b) Population c) Community 3) What is the largest ecosystem on Earth called? a) Biosphere b) Troposphere c) Sphere d) Atmosphere 4) What type of physical media appears in the image? a) Terrestrial b) air c) aerial d) tundra 5) What is the most important relationship that occurs in an ecosystem? a) Food b) Reproductive c) Interspecific d) Family

ECOSYSTEM

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